On Sat, 8 Mar 2025, Martin Liu wrote:

> This commit introduces the `mm_setup_per_zone_lowmem_reserve` trace
> event,which provides detailed insights into the kernel's per-zone lowmem
> reserve configuration.
> 
> The trace event provides precise timestamps, allowing developers to
> 
> 1. Correlate lowmem reserve changes with specific kernel events and
> able to diagnose unexpected kswapd or direct reclaim behavior
> triggered by dynamic changes in lowmem reserve.
> 
> 2. know memory allocation failures that occur due to insufficient lowmem
> reserve, by precisely correlating allocation attempts with reserve
> adjustments.
> 
> Signed-off-by: Martin Liu <[email protected]>

Acked-by: David Rientjes <[email protected]>

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